Invoke repeating limit?

Hello. Is there a way to set a limit on InvokeRepeating? For example, it calls a function every 2 seconds for 8 seconds? Thanks

This is probably not the best way, but it should work:

public class InvokeMeRepeating : MonoBehaviour 
    // The time we started the invoke repeating
    private float startTime = 0.0f;
    // The time we want to spend repeating
    public float duration = 8.0f;
    // Test rigidbody
    public Rigidbody projectile;

    void LaunchProjectile() 
        // If this is called after our time duration has passed, then cancel
        if (startTime + duration < Time.time)
        { // else keep on doing stuff
            Rigidbody instance = Instantiate(projectile) as Rigidbody;
            instance.velocity = Random.insideUnitSphere * 5;

    public void Awake() 
        // Record the start time and lets start repeating
        startTime = Time.time;
        InvokeRepeating("LaunchProjectile", 0, 2.0f);